Achondrites are a type of rock that falls from space and hits the Earth. These rocks are very different from the rocks we find on our planet because they are made from material that has never been on Earth before.
Achondrites are special because they come from other planets or asteroids in our solar system. Imagine a big rock floating around in space for a long time. Sometimes, this rock will get hit by something else and pieces will break off. These pieces can eventually find their way to Earth and become achondrites.
One thing that makes achondrites unique is that they have gone through a lot of changes during their time in space. They can have different colors, textures, and patterns because they have been exposed to things like high heat and pressure. Scientists study achondrites because they can teach us a lot about our solar system's history and the formation of planets.
So, in simple terms, achondrites are special space rocks that fall to Earth and can tell us a lot about the universe.